How To Find Social Insurance Number

Unlocking the Mysteries of Finding Your Social Insurance Number in Canada: An In-Depth Guide

Among the most critical pieces of identification for Canadian residents is the Social Insurance Number (SIN). This brief guide will walk you through the three primary ways of finding your SIN – through the government's official website, their mobile app, and their call centre. Let's dive right in.

Finding Your SIN through the Official Canadian Government Website

The Canadian Government's official website serves as a hub for various services, including finding your SIN. It’s an efficient and reliable source powered by extensive security settings that assure the safety of your personal data. Below is a step-by-step guide on how to find your SIN on the government's official website:

  • Open your browser and visit the official Canadian government website.
  • Search for 'Social Insurance Number'.
  • Upon opening the SIN section, look for 'Recover or Replace Lost SIN'.
  • Follow the prompts and input the necessary details.

Keep in mind that you'll need to provide valid identification documents and answer specific security questions to confirm your identity. Once all the procedures have been completed, you'll receive your SIN via mail to the address on file with the government.

Locating Your SIN using the Mobile Application

For those who prefer a more mobile and on-the-go option, the mobile app is a suitable choice. The app is designed for ease of navigation and mirrors many services found on the government's official website. Here's how you can find your SIN using the mobile app:

  • Download and install the mobile app from the Google Play Store or Apple App Store.
  • Open the app and tap on 'Sign in' at the top right corner.
  • Once signed in, navigate to the 'Service' section and select 'Social Services'.
  • In the dropdown menu, tap 'Social Insurance Number'.
  • On the following screen, select 'Recover/Replace SIN'.
  • Enter your personal information as required to confirm your identity and proceed.

Similar to the website, the mobile app will entail confirmation of your identity, after which you'd receive your SIN by mail sent to your registered address.

Retrieving Your SIN through the Canadian Government Call Centre

If you are uncomfortable navigating government websites or apps or prefer human interaction, you can recover your SIN by reaching out to the Canadian Government's Call Centre. Here's the process broken down:

  • Dial the official Canadian government hotline at 1-800-O-Canada (1-800-622-6232).
  • Choose the option for 'Social Insurance Number' when the automated system prompts.
  • State your intention to retrieve your lost SIN.
  • Provide your personal details and answer the security questions for identity verification.

The customer service agent will process your request and, similar to the other two options, mail your SIN to your recorded address.


Whether you choose to find your SIN through the government's website, mobile app, or call centre, each path provides its own set of advantages catering to different preferences. Always ensure that you provide complete and accurate information in any form or dialogue for a successful retrieval of your SIN.